Systems and software engineering. Systems and software assurance-Concepts and vocabulary
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Information technology. System and software integrity levels
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Systems and software engineering. Systems and software assurance-Assurance case
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Systems and software engineering. Systems and software assurance-Assurance case
Document status: Active
Systems and software engineering. Systems and software assurance-System integrity levels
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Systems and software engineering. Systems and software assurance-Assurance in the life cycle
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Information technology. Telecommunications and information exchange between systems. Private integrated services network. Specification, functional model and information flows. Advice of charge supplementary services
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Information technology. Telecommunications and information exchange between systems. Private integrated services network. Inter-exchange signalling protocol. Advice of charge supplementary services
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Information technology. Telecommunications and information exchange between systems. Private integrated services network. Specification, functional model and information flows. Recall supplementary service
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Information technology. Telecommunications and information exchange between systems. Private integrated services network. Inter-exchange signalling protocol. Recall supplementary service
Document status: Active
